diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h
index 0ad737d2f289..9cb49980ec2d 100644
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -409,6 +409,8 @@ do { \
 #define E1000_I210_TQAVCC(_n)	(0x3004 + ((_n) * 0x40))
 #define E1000_I210_TQAVHC(_n)	(0x300C + ((_n) * 0x40))
 
+#define E1000_I210_RR2DCDELAY	0x5BF4
+
 #define E1000_INVM_DATA_REG(_n)	(0x12120 + 4*(_n))
 #define E1000_INVM_SIZE		64 /* Number of INVM Data Registers */
 
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 401bc2bd6b21..3182b059bf55 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -448,7 +448,7 @@ static void igb_set_msglevel(struct net_device *netdev, u32 data)
 
 static int igb_get_regs_len(struct net_device *netdev)
 {
-#define IGB_REGS_LEN 739
+#define IGB_REGS_LEN 740
 	return IGB_REGS_LEN * sizeof(u32);
 }
 
@@ -710,6 +710,9 @@ static void igb_get_regs(struct net_device *netdev,
 		for (i = 0; i < 12; i++)
 			regs_buff[727 + i] = rd32(E1000_TDWBAH(i + 4));
 	}
+
+	if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211)
+		regs_buff[739] = rd32(E1000_I210_RR2DCDELAY);
 }
 
 static int igb_get_eeprom_len(struct net_device *netdev)